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Book Cover
E-book
Author Terra, Walter R., author

Title Molecular physiology and evolution of insect digestive systems / Walter R. Terra, Clelia Ferreira, Carlos P. Silva
Published Cham : Springer International Publishing AG, [2023]

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Description 1 online resource (xiv, 260 pages) : illustrations (some color)
Series Entomology in Focus ; volume 7
Entomology in focus ; v. 7.
Contents Intro -- Preface -- Contents -- Chapter 1: Patterns of Insect Evolution -- 1.1 Initial Considerations -- 1.2 Polyneoptera -- 1.2.1 Dictyoptera -- 1.2.2 Orthoptera -- 1.3 Condylognatha -- 1.3.1 Thysanoptera -- 1.3.2 Hemiptera -- 1.4 Holometabola -- 1.4.1 Coleoptera -- 1.4.2 Hymenoptera -- 1.4.3 Diptera -- 1.4.4 Lepidoptera -- References -- Chapter 2: Overview of Insect Midgut Function -- 2.1 Food Handling and Ingestion -- 2.2 Gut Morphology -- 2.3 Stepwise Digestion of Nutrients -- 2.4 Phases of Digestion and Their Compartmentalization in the Midgut
2.5 Identification of the Sites of Transport of Water, Ions, and Nutrients Along the Gut -- References -- Chapter 3: Types and Chemistry of Diets -- 3.1 Initial Considerations -- 3.2 Detritus -- 3.2.1 Types of Detritus -- 3.2.2 Litter Chemical Composition -- 3.2.3 Litter and Wood Quality -- 3.2.4 Feces -- 3.2.5 Carcasses -- 3.3 Plant Materials -- 3.3.1 Leaves -- 3.3.2 Plant Exudates -- 3.3.3 Pollen -- 3.3.4 Nectar -- 3.3.5 Seeds -- 3.4 Bacteria -- 3.5 Fungi -- 3.6 Blood -- 3.7 Lichen -- References -- Chapter 4: Ordinary Digestive Enzymes -- 4.1 Introduction -- 4.2 Reliable Enzyme Assays
5.2 Enzymes Associated with Midgut Microvilli, Glycocalyx, and Microvilli-Associated Membranes -- 5.3 Chemistry of Microvillar and Microvilli-Associated Membranes -- 5.4 Mechanisms of Digestive Enzyme Secretion -- References -- Chapter 6: Midgut pH Buffering, Nutrient Absorption, Fluid Fluxes, and Enzyme Recycling -- 6.1 Overview -- 6.2 Midgut Conditions That Affect Digestion: pH Buffering, Redox Media, and Fluid Fluxes -- 6.3 Ion and Water Transporters -- 6.4 Nutrient Transporters -- 6.5 Models of Midgut pH Buffering -- 6.6 Models of Midgut Fluid Fluxes and Enzyme Recycling -- References
Chapter 7: Midgut Extracellular Layers and Their Function -- 7.1 Introduction -- 7.2 Mucus: Chemical Nature and Function -- 7.3 Peritrophic Membrane: Occurrence, Structure, and Formation -- 7.4 Peritrophic Membrane: Evolution and Function -- References -- Chapter 8: Endocrine Regulation of Insect Digestion -- 8.1 Initial Considerations -- 8.2 The Nervous System and the Regulation of Digestion in Insects -- 8.2.1 The Stomatogastric Nervous System of Insects -- 8.2.2 The Frontal Ganglion -- 8.2.3 The Hypocerebral Ganglion -- 8.2.4 The Ventricular Ganglion -- 8.2.5 The Terminal Abdominal Ganglion -- 8.2.6 The Midgut Endocrine Cells (Enteroendocrine Cells)
Summary This book provides a unique blend of data on insect life spans, physiology, enzymology and other molecular features associated with digestion and nutrient absorption to enrich the knowledge on insects and to disclose putative molecular targets for the development of new insect control technologies and for improving insect raising procedures to be used as food and feed. With this aim, the book overviews the types of diets consumed by insects, describing their chemical components demanding digestion and discusses the evolutionary selective pressures on insects associated with feeding. Digestive enzymes are classified and detailed according to their activity on substrates and their evolutionary protein families. The technical details on how to obtain reliable enzymological parameters are discussed. The book reviews the structural changes in enzymes associated with the adaptation of insects to new diets and in avoiding natural plant inhibitors. Midgut features that enhance digestive and nutrient absorption efficiency and their underlying molecular mechanisms are described regarding insects pertaining to key points in evolution. Evolutionary trends of the mechanisms of digestion and nutrient absorption are discussed
Bibliography Includes bibliographical references
Notes Description based on online resource; title from digital title page (viewed on October 09, 2023)
Subject Insects -- Digestive organs
Digestion.
Insects -- Food.
Form Electronic book
Author Ferreira, Clélia, author.
Silva, Carlos P., author
ISBN 9783031392337
3031392337